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Use compile-time generated regex and remove loglevel check

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SeaEagle1 2023-05-13 00:07:20 +02:00
parent 9352a24374
commit 126047bfd6
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1 changed files with 13 additions and 7 deletions
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18
Emby.Dlna/PlayTo/DlnaHttpClient.cs
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@ -17,7 +17,10 @@ using Microsoft.Extensions.Logging;
namespace Emby.Dlna.PlayTo namespace Emby.Dlna.PlayTo
{ {
public class DlnaHttpClient /// <summary>
/// Http client for Dlna PlayTo function.
/// </summary>
public partial class DlnaHttpClient
{ {
private readonly ILogger _logger; private readonly ILogger _logger;
private readonly IHttpClientFactory _httpClientFactory; private readonly IHttpClientFactory _httpClientFactory;
@ -62,8 +65,7 @@ namespace Emby.Dlna.PlayTo
var xmlString = await response.Content.ReadAsStringAsync(cancellationToken).ConfigureAwait(false); var xmlString = await response.Content.ReadAsStringAsync(cancellationToken).ConfigureAwait(false);
// find and replace unescaped ampersands (&) // find and replace unescaped ampersands (&)
Regex regex = new Regex(@"(&(?![a-z]*;))"); xmlString = EscapeAmpersandRegex().Replace(xmlString, "&amp;");
xmlString = regex.Replace(xmlString, @"&amp;");
try try
{ {
@ -77,10 +79,7 @@ namespace Emby.Dlna.PlayTo
catch (XmlException ex) catch (XmlException ex)
{ {
_logger.LogError(ex, "Failed to parse response"); _logger.LogError(ex, "Failed to parse response");
if (_logger.IsEnabled(LogLevel.Debug))
{
_logger.LogDebug("Malformed response: {Content}\n", xmlString); _logger.LogDebug("Malformed response: {Content}\n", xmlString);
}
return null; return null;
} }
@ -125,5 +124,12 @@ namespace Emby.Dlna.PlayTo
// Have to await here instead of returning the Task directly, otherwise request would be disposed too soon // Have to await here instead of returning the Task directly, otherwise request would be disposed too soon
return await SendRequestAsync(request, cancellationToken).ConfigureAwait(false); return await SendRequestAsync(request, cancellationToken).ConfigureAwait(false);
} }
/// <summary>
/// Compile-time generated regular expression for escaping ampersands.
/// </summary>
/// <returns>Compiled regular expression.</returns>
[GeneratedRegex("(&(?![a-z]*;))")]
private static partial Regex EscapeAmpersandRegex();
} }
} }